Rehash: meaning, definitions and examples

🔄
Add to dictionary

rehash

 

[ riːˈhæʃ ]

Verb
Context #1 | Verb

computing term

To rehash means to process or reorganize data using a different hashing function. In computing, it often refers to changing the method used to compute hash values for data in a data structure like a hash table. This action is typically performed when there is a need to reduce collisions or improve performance in terms of accessing data. Rehashing can also be applied to various contexts outside of computing, indicating a reevaluation or reworking of ideas.

Synonyms

reorganize, revise, rework

Examples of usage

  • We need to rehash the algorithm to improve its efficiency.
  • After encountering too many collisions, the system was programmed to rehash the data.
  • The developer decided to rehash the code for better optimization.

Translations

Translations of the word "rehash" in other languages:

🇵🇹 rehash

🇮🇳 रीहैश

🇩🇪 rehash

🇮🇩 rehash

🇺🇦 переробка

🇵🇱 rehash

🇯🇵 リハッシュ

🇫🇷 rehash

🇪🇸 rehash

🇹🇷 rehash

🇰🇷 리해시

🇸🇦 إعادة تجميع

🇨🇿 rehash

🇸🇰 rehash

🇨🇳 重构

🇸🇮 rehash

🇮🇸 rehash

🇰🇿 rehash

🇬🇪 rehash

🇦🇿 rehash

🇲🇽 rehash

Etymology

The term 'rehash' originated in the late 20th century within computer science, closely associated with hashing, which is a fundamental concept in computer programming and data management. The word 'hash' is derived from the act of chopping or mixing together, and in a computing context, it refers specifically to a method of distributing data across various locations based on a hash function. As the technology and its applications evolved, particularly in data structures, the idea of 'rehashing' emerged as a solution for improving the efficiency of data retrieval and storage. The prefix 're-' denotes a repeat or revisitation of the hashing process, emphasizing the corrective or optimizing intention behind the action. Thus, 'rehash' encapsulates both its computing roots and its more general application in revisiting and refreshing ideas or methodologies in numerous fields.